2016/11/20 by S. I. Denisov, B. O. Pedchenko
Engineering · Physics and Astronomy · #Characterization and Applications of Magnetic Nanoparticles #Condensed matter physics #Ferromagnetism #Magnetic Field Sensors Techniques #Materials science #Physics #Power Transformer Diagnostics and Insulation #cond-mat.soft
paper · pdf · doi:10.1063/1.4975031
published as J. Appl. Phys. 121, 043912 (2017) · 10 pages, 3 figures
arxiv created 2016/11/20 · openalex publication_date 2017/01/28 · arxiv updated 2017/02/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A minimal system of equations is introduced and applied to study the drift motion of ferromagnetic particles suspended in a viscous fluid and subjected to a time-periodic driving force and a nonuniformly rotating magnetic field. It is demonstrated that the synchronized translational and rotational oscillations of these particles are accompanied by their drift in a preferred direction, which occurs under the action of the Magnus force. We calculate both analytically and numerically the drift velocity of particles characterized by single-domain cores and nonmagnetic shells and show that there are two types of drift, unidirectional and bidirectional, which can be realized in suspensions composed of particles with different core-shell ratios. The possibility of using the phenomenon of bidirectional drift for the separation of core-shell particles in suspensions is also discussed.